高架轨道桥梁结构振动与噪声预测方法及控制研究进展

Research Progress on Prediction Methods and Control of Vibration and Noise of Elevated Track Bridge Structure

随着城市轨道交通的快速发展和人们环保意识的增强,结构振动与噪声已成为制约高架轨道桥梁发展的瓶颈。针对高架轨道桥梁诱发的环境振动和噪声问题,国内外学者从列车-轨道-桥梁-大地耦合系统动力学理论、模型、预测方法、现场试验及桥梁结构减振降噪控制技术等方面进行了大量系统研究,取得了一系列成果。文中综述了高架轨道桥梁诱发环境振动和噪声问题的研究现状和进展,重点论述了高架轨道桥梁结构振动与噪声理论、模型、预测方法、高架轨道桥梁结构减振降噪技术及桥梁结构主动控制和组合减振降噪技术,总结了高架轨道桥梁结构振动与噪声分布的一般规律,提出了桥梁结构主动控制和多种措施联合使用是高架轨道桥梁结构减振降噪技术创新和产品研发的方向。

With the rapid development of urban rail transit and the enhancement of people’s awareness of environmental protection,vibration and noise of elevated track bridge structure have become a bottleneck restricting the development of elevated track bridges.In response to the environmental vibration and noise caused by elevated track bridges,domestic and foreign scholars have carried out extensive systematic research on the dynamics theory,modeling and prediction methods for the train-track-bridge-ground coupling system,field tests and bridge structure vibration reduction and noise reduction control technology,and a series of achievements have been made.In this paper,the research status and progress of the environmental vibration and noise induced by elevated rail transit system were reviewed,followed by a discussion on the vibration and noise theory,model,analysis and prediction method,vibration and noise reduction technology,active control of bridge structure and combined vibration and noise reduction technology for elevated track bridge structure.The general rules of vibration and noise distribution of viaduct bridges were summarized.It is pointed out that the active control of bridge structure and the combined use of various measures are the new direction of vibration and noise reduction technology innovation and product research and development of elevated track bridge structure.